diff --git a/neo/Network/P2P/Payloads/Transaction.cs b/neo/Network/P2P/Payloads/Transaction.cs
index 11e703a43b..af38ef6dcc 100644
--- a/neo/Network/P2P/Payloads/Transaction.cs
+++ b/neo/Network/P2P/Payloads/Transaction.cs
@@ -125,13 +125,8 @@ public override int GetHashCode()
 
         public UInt160[] GetScriptHashesForVerifying(Snapshot snapshot)
         {
-            if (Cosigners.Length == 0 || (Cosigners.Length == 1 && Cosigners[0].Account == Sender))
-            {
-                return new UInt160[] { Sender };
-            }
-
-            var hashes = new HashSet<UInt160>(Cosigners.Select(p => p.Account));
-            hashes.UnionWith(new HashSet<UInt160> { Sender });
+            var hashes = new HashSet<UInt160> { Sender };
+            hashes.UnionWith(Cosigners.Select(p => p.Account));
             return hashes.OrderBy(p => p).ToArray();
         }